package cn.com.guodiantong.ies.utils;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.net.MalformedURLException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;

import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPFile;
import org.apache.commons.net.ftp.FTPReply;

import com.alibaba.fastjson.JSONObject;

public class FtpUtils {
    //ftp服务器地址
    public String hostname = PropertiesUtils.get("FTP_HOSTNAME");
    //ftp服务器端口号默认为21
    public Integer port = 21 ;
    //ftp登录账号
    public String username = PropertiesUtils.get("FTP_USERNAME");
    //ftp登录密码
    public String password = PropertiesUtils.get("FTP_PASSWORD");
    
    public FTPClient ftpClient = null;
    
    /**
     * 初始化ftp服务器
     */
    public void initFtpClient() {
        ftpClient = new FTPClient();
        ftpClient.setControlEncoding("utf-8");
        try {
            System.out.println("connecting...ftp服务器:"+this.hostname+":"+this.port); 
            //连接ftp服务器
            ftpClient.connect(hostname, port); 
            //登录ftp服务器
            ftpClient.login(username, password); 
            //是否成功登录服务器
            int replyCode = ftpClient.getReplyCode(); 
            if(!FTPReply.isPositiveCompletion(replyCode)){
                System.out.println("connect failed...ftp服务器:"+this.hostname+":"+this.port); 
            }
            System.out.println("connect successfu...ftp服务器:"+this.hostname+":"+this.port); 
        }catch (MalformedURLException e) { 
           e.printStackTrace(); 
        }catch (IOException e) { 
           e.printStackTrace(); 
        } 
    }

    /**
    * 上传文件
    * @param pathname ftp服务保存地址
    * @param fileName 上传到ftp的文件名
    *  @param originfilename 待上传文件的名称（绝对地址） * 
    * @return
    */
    public boolean uploadFile( String pathname, String fileName,String originfilename){
        boolean flag = false;
        InputStream inputStream = null;
        try{
            System.out.println("开始上传文件");
            inputStream = new FileInputStream(new File(originfilename));
            initFtpClient();
            ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
            createDirecroty(pathname);
            ftpClient.makeDirectory(pathname);
            ftpClient.changeWorkingDirectory(pathname);
            ftpClient.storeFile(fileName, inputStream);
            inputStream.close();
            ftpClient.logout();
            flag = true;
            System.out.println("上传文件成功");
        }catch (Exception e) {
            System.out.println("上传文件失败");
            e.printStackTrace();
        }finally{
            if(ftpClient.isConnected()){ 
                try{
                    ftpClient.disconnect();
                }catch(IOException e){
                    e.printStackTrace();
                }
            } 
            if(null != inputStream){
                try {
                    inputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                } 
            } 
        }
        return flag;
    }
    /**
     * 上传文件
     * @param pathname ftp服务保存地址
     * @param fileName 上传到ftp的文件名
     * @param inputStream 输入文件流 
     * @return
     */
    public boolean uploadFile( String pathname, String fileName,InputStream inputStream){
        boolean flag = false;
        try{
            System.out.println("开始上传文件");
            initFtpClient();
            ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
            createDirecroty(pathname);
            ftpClient.makeDirectory(pathname);
            ftpClient.changeWorkingDirectory(pathname);
            ftpClient.storeFile(fileName, inputStream);
            inputStream.close();
            ftpClient.logout();
            flag = true;
            System.out.println("上传文件成功");
        }catch (Exception e) {
            System.out.println("上传文件失败");
            e.printStackTrace();
        }finally{
            if(ftpClient.isConnected()){ 
                try{
                    ftpClient.disconnect();
                }catch(IOException e){
                    e.printStackTrace();
                }
            } 
            if(null != inputStream){
                try {
                    inputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                } 
            } 
        }
        return flag;
    }
    //改变目录路径
     public boolean changeWorkingDirectory(String directory) {
            boolean flag = true;
            try {
                flag = ftpClient.changeWorkingDirectory(directory);
                if (flag) {
                  System.out.println("进入文件夹" + directory + " 成功！");

                } else {
                    System.out.println("进入文件夹" + directory + " 失败！开始创建文件夹");
                }
            } catch (IOException ioe) {
                ioe.printStackTrace();
            }
            return flag;
        }

    //创建多层目录文件，如果有ftp服务器已存在该文件，则不创建，如果无，则创建
    public boolean createDirecroty(String remote) throws IOException {
        boolean success = true;
        String directory = remote + "/";
        // 如果远程目录不存在，则递归创建远程服务器目录
        if (!directory.equalsIgnoreCase("/") && !changeWorkingDirectory(new String(directory))) {
            int start = 0;
            int end = 0;
            if (directory.startsWith("/")) {
                start = 1;
            } else {
                start = 0;
            }
            end = directory.indexOf("/", start);
            StringBuilder path = new StringBuilder();
            StringBuilder paths = new StringBuilder();
            while (true) {
                String subDirectory = new String(remote.substring(start, end).getBytes("GBK"), "iso-8859-1");
                path.append("/");
                path.append(subDirectory);
                if (!existFile(path.toString())) {
                    if (makeDirectory(subDirectory)) {
                        changeWorkingDirectory(subDirectory);
                    } else {
                        System.out.println("创建目录[" + subDirectory + "]失败");
                        changeWorkingDirectory(subDirectory);
                    }
                } else {
                    changeWorkingDirectory(subDirectory);
                }

                paths.append("/");
                paths.append(subDirectory);
                start = end + 1;
                end = directory.indexOf("/", start);
                // 检查所有目录是否创建完毕
                if (end <= start) {
                    break;
                }
            }
        }
        return success;
    }

  //判断ftp服务器文件是否存在    
    public boolean existFile(String path) throws IOException {
            boolean flag = false;
            FTPFile[] ftpFileArr = ftpClient.listFiles(path);
            if (ftpFileArr.length > 0) {
                flag = true;
            }
            return flag;
        }
    //创建目录
    public boolean makeDirectory(String dir) {
        boolean flag = true;
        try {
            flag = ftpClient.makeDirectory(dir);
            if (flag) {
                System.out.println("创建文件夹" + dir + " 成功！");

            } else {
                System.out.println("创建文件夹" + dir + " 失败！");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return flag;
    }
    
    /** * 下载文件 * 
    * @param pathname FTP服务器文件目录 * 
    * @param filename 文件名称 * 
    * @param localpath 下载后的文件路径 * 
    * @return */
    public  boolean downloadFile(String pathname, String filename, String localpath){ 
        boolean flag = false; 
        OutputStream os=null;
        try { 
        	SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        	Calendar cal = Calendar.getInstance();
        	cal.add(Calendar.MINUTE, -5);
        	long date = cal.getTimeInMillis();
        	System.out.println(sdf.format(cal.getTime()));
            System.out.println("开始下载文件");
            initFtpClient();
            //切换FTP目录 
            ftpClient.changeWorkingDirectory(pathname); 
            FTPFile[] ftpFiles = ftpClient.listFiles(); 
            for(FTPFile file : ftpFiles){ 
            	long time = file.getTimestamp().getTimeInMillis();
//            	System.out.println(sdf.format(file.getTimestamp().getTime()));
                if(filename.equalsIgnoreCase(file.getName())){ 
                	if(date>time){ 
	                    File localFile = new File(localpath + "/" + file.getName()); 
	                    os = new FileOutputStream(localFile); 
	                    ftpClient.retrieveFile(file.getName(), os); 
	                    os.close(); 
	                    flag = true; 
	                }
                }
            } 
            ftpClient.logout(); 
            System.out.println("下载文件成功："+flag);
        } catch (Exception e) { 
            System.out.println("下载文件失败");
            e.printStackTrace(); 
        } finally{ 
            if(ftpClient.isConnected()){ 
                try{
                    ftpClient.disconnect();
                }catch(IOException e){
                    e.printStackTrace();
                }
            } 
            if(null != os){
                try {
                    os.close();
                } catch (IOException e) {
                    e.printStackTrace();
                } 
            } 
        } 
        return flag; 
    }
    
    /** * 删除文件 * 
    * @param pathname FTP服务器保存目录 * 
    * @param filename 要删除的文件名称 * 
    * @return */ 
    public boolean deleteFile(String pathname, String filename){ 
        boolean flag = false; 
        try { 
            System.out.println("开始删除文件");
            initFtpClient();
            //切换FTP目录 
            ftpClient.changeWorkingDirectory(pathname); 
            ftpClient.dele(filename); 
            ftpClient.logout();
            flag = true; 
            System.out.println("删除文件成功");
        } catch (Exception e) { 
            System.out.println("删除文件失败");
            e.printStackTrace(); 
        } finally {
            if(ftpClient.isConnected()){ 
                try{
                    ftpClient.disconnect();
                }catch(IOException e){
                    e.printStackTrace();
                }
            } 
        }
        return flag; 
    }
    
    /**
     * getFiles( 读取某个目录下所有文件、文件夹)
     * @param path
     * @return
     *ArrayList<String>
     * @exception
     * @since  1.0.0
    */
    public static ArrayList<String> getFiles(String path) {
        ArrayList<String> files = new ArrayList<String>();
        File file = new File(path);
        File[] tempList = file.listFiles();

        for (int i = 0; i < tempList.length; i++) {
            if (tempList[i].isFile()) {
//                  System.out.println("文     件：" + tempList[i]);
                files.add(tempList[i].toString());
            }
            if (tempList[i].isDirectory()) {
//                  System.out.println("文件夹：" + tempList[i]);
            }
        }
        return files;
    }
    
    /**
     * readFile(读取指定路径下所有的文件)
     * @return
     *boolean
     * @exception
     * @since  1.0.0
    */
    public static boolean readFile(String path){
    	// 1.创建文件对象
		File fromFile = new File(path);
		// 2.创建字符输入流
		Reader reader = null;
		StringBuffer sbf=new StringBuffer();
		try {
			reader = new FileReader(fromFile);
			// 3.循环读取（打印）
			int content = reader.read();
			while (content != -1) {
//				System.out.print((char) content);
				sbf.append((char) content);
				content = reader.read();
			}
			if(sbf.length()>0){
				JSONObject jo = JSONObject.parseObject(sbf.toString());
				System.out.println(jo);
			}
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}finally {
			// 4.关闭流
			try {
				reader.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		
		return true;
    }
    
    public static boolean moveFile(String fromPath,String toPath){
    	boolean flag = false;
    	try {  
            File afile = new File(fromPath);  
            if (afile.renameTo(new File(toPath + afile.getName()))) {  
                System.out.println("File is moved successful!");  
                flag = true;
            } else {  
                System.out.println("File is failed to move!");  
            }  
        } catch (Exception e) {  
            e.printStackTrace();  
        }
		return flag;
    }
    public static void main(String[] args) {
//        FtpUtils ftp =new FtpUtils(); 
//        ftp.downloadFile("ftpserver", "real.json", "D://");
//        ftp.deleteFile("ftpserver", "real.json");
//    	Path fromPath = Paths.get("c:","test","a.txt"); 
//    	Path toPath = Paths.get("c:","test1","b.txt");
    	ArrayList<String> list = getFiles("D://json");
    	System.out.println(list);
    	for (String path : list) {
    		boolean b = readFile(path);
    		if(b){
    			moveFile(path,"D://");
    		}
		}
    }
}
